Better direct the game to children age 13 or not?

Hi!
I'm just wondered what to choose, direct the game to children age 13 and younger or not. My game is directed to everyone. It can be played by children and adults. There's no violenve, blood or something like this. Just a simple game, but I want to have as many ads as possible avaible. I think that, when I direct the game to children I'm going to have less ads avaible to display. Am I thinking right?
Best Regards.

 

Someone answers your question here:
http://forum.unity3d.com/threads/no-revenue.394831/
Looks like you're better off not directing to under 13 as they then can't track usage.

 

Games for all ages are not required to enable COPPA compliance.

We recommend that you leave COPPA compliance disabled unless your game specifically targets an audience under 13, as it can reduce your overall revenue.